Cod sursa(job #801924)

Utilizator paunmatei7FMI Paun Matei paunmatei7 Data 25 octombrie 2012 14:30:11
Problema Loto Scor 5
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.28 kb
#include<cstdio>
#include<algorithm>
using namespace std;
long long b[1000007];
long a[107];
long n,s,u;
inline bool bs(long long val)//cautare binara
{
	long st=1,dr=u,med;
	while (st<=dr)
	{
		med=(st+dr)/2;
		if (b[med]==val)
			return 1;
		if (b[med]<val)
			st=med+1;
		else
			dr=med-1;
	}
	if (b[med]==val)
		return 1;
	return 0;
}
int main()
{
	long i,j,k,i1,j1,k1;
	freopen("loto.in","r",stdin);
	freopen("loto.out","w",stdout);
	scanf("%ld %ld",&n,&s);
	for (i=1;i<=n;i++)
		scanf("%ld",&a[i]);
	//sume
	for (i=1;i<=n;i++)
		for (j=1;j<=n;j++)
			for (k=1;k<=n;k++)
				b[++u]=a[i]+a[j]+a[k];
	sort(b+1,b+u+1);//sortez
	bool ok=0;
	for (i=1;i<=n&&ok==0;i++)
		for (j=1;j<=n&&ok==0;j++)
			for (k=1;k<=n&&ok==0;k++)
			{
				if (a[i]+a[j]+a[k]>s)
					ok=1;
				if (bs(s-a[i]-a[j]-a[k])==1&&ok==0)
				{
					//afisez solutii
					printf("%ld %ld %ld ",a[i],a[j],a[k]);
					for (i1=1;i1<=n&&ok==0;i1++)
						for (j1=1;j1<=n&&ok==0;j1++)
							for (k1=1;k1<=n&&ok==0;k1++)
							{
								if (a[i1]+a[j1]+a[k1]>s-a[i]-a[j]-a[k])
									ok=1;
								if (a[i1]+a[j1]+a[k1]==s-a[i]-a[j]-a[k]&&ok==0)
								{
									printf("%ld %ld %ld\n",a[i1],a[j1],a[k1]);
									ok=1;
									//returnez ca sa nu mai parcurg
								}
							}
				}
			}
	if (ok==0)
	printf("-1");
	return 0;
}